MAREX GROUP PLC

Ticker: MRX CUSIP: G5S37H101 Class: Common Stock

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

Note: Option positions (PUT/CALL) are excluded.

Q2 2025

Shares 3,888 Value ($000) $0 Avg Close $41.19 Range $32.61 - $48.76

Q4 2024

Shares 706 Value ($000) $0 Avg Close $27.46 Range $22.62 - $31.93

Q2 2024

Shares 10 Value ($000) $0 Avg Close $19.14 Range $17.65 - $22.83

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	3,888	$0	$41.19	$32.61 - $48.76
Q4 2024	706	$0	$27.46	$22.62 - $31.93
Q2 2024	10	$0	$19.14	$17.65 - $22.83